1295856091 has 2 divisors, whose sum is σ = 1295856092. Its totient is φ = 1295856090.

The previous prime is 1295856049. The next prime is 1295856113. The reversal of 1295856091 is 1906585921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1295856091 - 2⁹ = 1295855579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1295850091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647928045 + 647928046.

It is an arithmetic number, because the mean of its divisors is an integer number (647928046).

Almost surely, 2^1295856091 is an apocalyptic number.

1295856091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295856091 is an equidigital number, since it uses as much as digits as its factorization.

1295856091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 46.

The square root of 1295856091 is about 35998.0012084004. The cubic root of 1295856091 is about 1090.2319992661.

The spelling of 1295856091 in words is "one billion, two hundred ninety-five million, eight hundred fifty-six thousand, ninety-one".